./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9e160fe5ab2582a9d6f5a0de6f18c7ad864793aa408f2050ff0148a78c40a3b1 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 09:50:39,708 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 09:50:39,770 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 09:50:39,776 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 09:50:39,777 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 09:50:39,805 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 09:50:39,806 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 09:50:39,806 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 09:50:39,807 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 09:50:39,808 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 09:50:39,809 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 09:50:39,809 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 09:50:39,810 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 09:50:39,810 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 09:50:39,810 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 09:50:39,812 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 09:50:39,812 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 09:50:39,813 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 09:50:39,813 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 09:50:39,813 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 09:50:39,813 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 09:50:39,816 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 09:50:39,816 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 09:50:39,817 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 09:50:39,817 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 09:50:39,817 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 09:50:39,817 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 09:50:39,817 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 09:50:39,818 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 09:50:39,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:50:39,818 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 09:50:39,818 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 09:50:39,818 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 09:50:39,819 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 09:50:39,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 09:50:39,819 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 09:50:39,820 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 09:50:39,820 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 09:50:39,821 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 09:50:39,821 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e160fe5ab2582a9d6f5a0de6f18c7ad864793aa408f2050ff0148a78c40a3b1 [2024-11-20 09:50:40,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 09:50:40,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 09:50:40,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 09:50:40,143 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 09:50:40,144 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 09:50:40,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i [2024-11-20 09:50:41,518 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 09:50:41,947 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 09:50:41,949 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i [2024-11-20 09:50:41,990 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/237606bea/d1aede99c6874937891c7d32b6926651/FLAG8af0f2642 [2024-11-20 09:50:42,113 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/237606bea/d1aede99c6874937891c7d32b6926651 [2024-11-20 09:50:42,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 09:50:42,118 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 09:50:42,120 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 09:50:42,120 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 09:50:42,126 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 09:50:42,127 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:50:42" (1/1) ... [2024-11-20 09:50:42,128 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@153ae4dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:42, skipping insertion in model container [2024-11-20 09:50:42,130 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:50:42" (1/1) ... [2024-11-20 09:50:42,226 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 09:50:42,511 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i[4494,4507] [2024-11-20 09:50:42,521 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i[4554,4567] [2024-11-20 09:50:43,365 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:43,366 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:43,366 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:43,367 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:43,370 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:43,388 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:43,391 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:43,394 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:43,395 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:43,397 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:43,399 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:43,400 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:43,401 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:43,855 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:43,861 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:43,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:50:43,968 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 09:50:43,986 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i[4494,4507] [2024-11-20 09:50:43,989 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i[4554,4567] [2024-11-20 09:50:44,055 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:44,056 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:44,056 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:44,057 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:44,060 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:44,069 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:44,071 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:44,072 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:44,072 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:44,073 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:44,074 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:44,074 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:44,074 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:44,133 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:44,138 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 09:50:44,146 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7517-7528] [2024-11-20 09:50:44,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:50:44,449 INFO L204 MainTranslator]: Completed translation [2024-11-20 09:50:44,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:44 WrapperNode [2024-11-20 09:50:44,450 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 09:50:44,451 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 09:50:44,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 09:50:44,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 09:50:44,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:44" (1/1) ... [2024-11-20 09:50:44,542 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:44" (1/1) ... [2024-11-20 09:50:44,616 INFO L138 Inliner]: procedures = 679, calls = 1574, calls flagged for inlining = 46, calls inlined = 6, statements flattened = 584 [2024-11-20 09:50:44,617 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 09:50:44,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 09:50:44,621 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 09:50:44,621 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 09:50:44,637 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:44" (1/1) ... [2024-11-20 09:50:44,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:44" (1/1) ... [2024-11-20 09:50:44,647 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:44" (1/1) ... [2024-11-20 09:50:44,745 INFO L175 MemorySlicer]: Split 291 memory accesses to 6 slices as follows [2, 238, 34, 5, 3, 9]. 82 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [2, 6, 5, 5, 1, 5]. The 237 writes are split as follows [0, 232, 4, 0, 1, 0]. [2024-11-20 09:50:44,749 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:44" (1/1) ... [2024-11-20 09:50:44,750 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:44" (1/1) ... [2024-11-20 09:50:44,790 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:44" (1/1) ... [2024-11-20 09:50:44,795 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:44" (1/1) ... [2024-11-20 09:50:44,809 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:44" (1/1) ... [2024-11-20 09:50:44,816 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:44" (1/1) ... [2024-11-20 09:50:44,833 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 09:50:44,838 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 09:50:44,839 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 09:50:44,839 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 09:50:44,840 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:44" (1/1) ... [2024-11-20 09:50:44,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:50:44,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:50:44,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 09:50:44,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 09:50:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 09:50:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-20 09:50:44,997 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-20 09:50:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-20 09:50:44,997 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-20 09:50:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-20 09:50:44,998 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-20 09:50:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-20 09:50:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-20 09:50:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-20 09:50:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-20 09:50:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-20 09:50:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-20 09:50:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 09:50:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 09:50:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 09:50:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 09:50:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 09:50:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-20 09:50:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-20 09:50:45,001 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-20 09:50:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-20 09:50:45,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-20 09:50:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 09:50:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 09:50:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 09:50:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 09:50:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 09:50:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 09:50:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-20 09:50:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-20 09:50:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 09:50:45,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 09:50:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-20 09:50:45,005 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-20 09:50:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-20 09:50:45,005 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-20 09:50:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-20 09:50:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-20 09:50:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-20 09:50:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-20 09:50:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-20 09:50:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-20 09:50:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 09:50:45,006 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 09:50:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 09:50:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_clear [2024-11-20 09:50:45,006 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_clear [2024-11-20 09:50:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 09:50:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 09:50:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 09:50:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-20 09:50:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-20 09:50:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-20 09:50:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-20 09:50:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-20 09:50:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-20 09:50:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-20 09:50:45,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-20 09:50:45,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-20 09:50:45,008 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-20 09:50:45,008 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-20 09:50:45,008 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-20 09:50:45,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-20 09:50:45,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 09:50:45,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 09:50:45,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 09:50:45,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 09:50:45,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 09:50:45,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-20 09:50:45,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 09:50:45,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 09:50:45,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 09:50:45,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 09:50:45,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 09:50:45,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-20 09:50:45,293 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 09:50:45,295 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 09:50:51,154 INFO L? ?]: Removed 63 outVars from TransFormulas that were not future-live. [2024-11-20 09:50:51,154 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 09:50:51,170 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 09:50:51,171 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 09:50:51,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:50:51 BoogieIcfgContainer [2024-11-20 09:50:51,172 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 09:50:51,174 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 09:50:51,174 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 09:50:51,177 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 09:50:51,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:50:42" (1/3) ... [2024-11-20 09:50:51,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4530bf3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:50:51, skipping insertion in model container [2024-11-20 09:50:51,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:44" (2/3) ... [2024-11-20 09:50:51,179 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4530bf3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:50:51, skipping insertion in model container [2024-11-20 09:50:51,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:50:51" (3/3) ... [2024-11-20 09:50:51,180 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_clear_harness_negated.i [2024-11-20 09:50:51,197 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 09:50:51,197 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 09:50:51,278 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 09:50:51,285 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@78765ddd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 09:50:51,286 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 09:50:51,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 63 states have (on average 1.1904761904761905) internal successors, (75), 64 states have internal predecessors, (75), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-20 09:50:51,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 09:50:51,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:50:51,302 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:50:51,302 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:50:51,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:50:51,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1818819730, now seen corresponding path program 1 times [2024-11-20 09:50:51,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:50:51,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737847765] [2024-11-20 09:50:51,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:50:51,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:50:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:50:57,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 09:50:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:50:57,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 09:50:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:50:57,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 09:50:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:50:57,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 09:50:57,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:50:57,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 09:50:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:50:57,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-20 09:50:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:50:57,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 09:50:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:50:57,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 09:50:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:50:57,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 09:50:57,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:50:57,725 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-20 09:50:57,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:50:57,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737847765] [2024-11-20 09:50:57,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737847765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:50:57,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:50:57,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:50:57,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297200526] [2024-11-20 09:50:57,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:50:57,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:50:57,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:50:57,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:50:57,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:50:57,771 INFO L87 Difference]: Start difference. First operand has 101 states, 63 states have (on average 1.1904761904761905) internal successors, (75), 64 states have internal predecessors, (75), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-20 09:51:01,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 09:51:03,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:51:03,620 INFO L93 Difference]: Finished difference Result 205 states and 276 transitions. [2024-11-20 09:51:03,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:51:03,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 60 [2024-11-20 09:51:03,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:51:03,630 INFO L225 Difference]: With dead ends: 205 [2024-11-20 09:51:03,631 INFO L226 Difference]: Without dead ends: 106 [2024-11-20 09:51:03,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:51:03,636 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 28 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-20 09:51:03,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 128 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 69 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2024-11-20 09:51:03,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-20 09:51:03,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 96. [2024-11-20 09:51:03,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 59 states have (on average 1.1694915254237288) internal successors, (69), 60 states have internal predecessors, (69), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-20 09:51:03,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 118 transitions. [2024-11-20 09:51:03,681 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 118 transitions. Word has length 60 [2024-11-20 09:51:03,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:51:03,686 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 118 transitions. [2024-11-20 09:51:03,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-20 09:51:03,686 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 118 transitions. [2024-11-20 09:51:03,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 09:51:03,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:51:03,689 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:51:03,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 09:51:03,690 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:51:03,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:51:03,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1417756758, now seen corresponding path program 1 times [2024-11-20 09:51:03,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:51:03,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460556754] [2024-11-20 09:51:03,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:51:03,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:51:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:09,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 09:51:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:09,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 09:51:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:09,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 09:51:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:09,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 09:51:09,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:10,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 09:51:10,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:10,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-20 09:51:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:10,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 09:51:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:10,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 09:51:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:10,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 09:51:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:10,427 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-20 09:51:10,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:51:10,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460556754] [2024-11-20 09:51:10,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460556754] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:51:10,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655572853] [2024-11-20 09:51:10,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:51:10,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:51:10,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:51:10,432 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 09:51:10,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 09:51:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:16,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 4029 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 09:51:16,109 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:51:17,169 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 09:51:17,170 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 09:51:17,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655572853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:51:17,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 09:51:17,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-11-20 09:51:17,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466085523] [2024-11-20 09:51:17,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:51:17,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:51:17,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:51:17,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:51:17,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-20 09:51:17,174 INFO L87 Difference]: Start difference. First operand 96 states and 118 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-20 09:51:19,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:51:19,322 INFO L93 Difference]: Finished difference Result 160 states and 199 transitions. [2024-11-20 09:51:19,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:51:19,323 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 60 [2024-11-20 09:51:19,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:51:19,325 INFO L225 Difference]: With dead ends: 160 [2024-11-20 09:51:19,325 INFO L226 Difference]: Without dead ends: 98 [2024-11-20 09:51:19,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-20 09:51:19,328 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 123 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-20 09:51:19,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 305 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-20 09:51:19,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-20 09:51:19,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-20 09:51:19,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 60 states have (on average 1.1666666666666667) internal successors, (70), 62 states have internal predecessors, (70), 25 states have call successors, (25), 11 states have call predecessors, (25), 12 states have return successors, (26), 24 states have call predecessors, (26), 24 states have call successors, (26) [2024-11-20 09:51:19,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 121 transitions. [2024-11-20 09:51:19,349 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 121 transitions. Word has length 60 [2024-11-20 09:51:19,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:51:19,350 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 121 transitions. [2024-11-20 09:51:19,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-20 09:51:19,350 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 121 transitions. [2024-11-20 09:51:19,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-20 09:51:19,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:51:19,356 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:51:19,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 09:51:19,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:51:19,557 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:51:19,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:51:19,558 INFO L85 PathProgramCache]: Analyzing trace with hash -270811530, now seen corresponding path program 1 times [2024-11-20 09:51:19,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:51:19,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817041729] [2024-11-20 09:51:19,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:51:19,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:51:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:25,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 09:51:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:25,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 09:51:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:25,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 09:51:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:25,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 09:51:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:26,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 09:51:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:26,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 09:51:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:26,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 09:51:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:26,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-20 09:51:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:26,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 09:51:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:27,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:51:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:27,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 09:51:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:27,420 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-20 09:51:27,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:51:27,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817041729] [2024-11-20 09:51:27,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817041729] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:51:27,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371187207] [2024-11-20 09:51:27,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:51:27,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:51:27,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:51:27,428 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 09:51:27,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 09:51:32,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:33,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 4156 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 09:51:33,020 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:51:34,941 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-20 09:51:34,942 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 09:51:34,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371187207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:51:34,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 09:51:34,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-11-20 09:51:34,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536704515] [2024-11-20 09:51:34,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:51:34,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 09:51:34,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:51:34,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 09:51:34,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-20 09:51:34,946 INFO L87 Difference]: Start difference. First operand 98 states and 121 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-20 09:51:38,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:51:38,512 INFO L93 Difference]: Finished difference Result 157 states and 192 transitions. [2024-11-20 09:51:38,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 09:51:38,512 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 75 [2024-11-20 09:51:38,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:51:38,514 INFO L225 Difference]: With dead ends: 157 [2024-11-20 09:51:38,514 INFO L226 Difference]: Without dead ends: 96 [2024-11-20 09:51:38,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-20 09:51:38,516 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 128 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-20 09:51:38,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 434 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-20 09:51:38,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-20 09:51:38,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-20 09:51:38,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 59 states have (on average 1.152542372881356) internal successors, (68), 60 states have internal predecessors, (68), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-20 09:51:38,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 117 transitions. [2024-11-20 09:51:38,530 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 117 transitions. Word has length 75 [2024-11-20 09:51:38,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:51:38,530 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 117 transitions. [2024-11-20 09:51:38,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-20 09:51:38,531 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 117 transitions. [2024-11-20 09:51:38,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-20 09:51:38,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:51:38,533 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:51:38,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-20 09:51:38,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-20 09:51:38,734 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:51:38,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:51:38,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1423335052, now seen corresponding path program 1 times [2024-11-20 09:51:38,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:51:38,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867094086] [2024-11-20 09:51:38,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:51:38,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:51:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:52,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 09:51:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:52,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 09:51:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:52,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 09:51:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:52,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 09:51:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:53,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 09:51:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:53,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 09:51:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:53,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 09:51:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:53,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-20 09:51:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:53,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 09:51:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:53,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 09:51:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:53,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 09:51:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:53,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 09:51:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:53,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 09:51:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:53,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 09:51:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:53,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 09:51:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:51:53,865 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-20 09:51:53,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:51:53,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867094086] [2024-11-20 09:51:53,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867094086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:51:53,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:51:53,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 09:51:53,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741650157] [2024-11-20 09:51:53,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:51:53,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 09:51:53,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:51:53,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 09:51:53,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:51:53,868 INFO L87 Difference]: Start difference. First operand 96 states and 117 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 8 states have internal predecessors, (36), 6 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (11), 7 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-20 09:51:57,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 09:52:02,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []